Heavy-Duty Hex Bolt 5/8 x 9 UNF with Zinc Yellow Plating SKU: QT357322

A loose or failed bolt in critical machinery connections creates safety hazards and costly downtime. This heavy-duty 5/8 x 9 UNF hex bolt with zinc yellow plating provides the extended length and superior corrosion protection needed for demanding agricultural applications where thick steel assemblies and harsh environments test every fastener.

Why This Bolt Works

• Fine UNF threads deliver stronger holding power than coarse threads in high-stress applications
• 9-inch length handles through-bolting of thick implement frames and heavy structural assemblies
• Zinc yellow plating resists corrosion from fertilizers, moisture, and agricultural chemicals
• Heavy-duty construction maintains integrity under extreme farm operation stress

This extended-length bolt is essential for securing major implement attachments, structural framework connections, and heavy-duty mounting applications where standard shorter bolts simply won't reach. If you're dealing with thick steel assemblies or need maximum thread engagement for safety-critical connections, call S&H Parts for expert fitment guidance.